Can someone provide detailed instructions for the correct procedure to install the cams on my 2005 Volvo S 60 T 5. I've watched several videos and some say to mount the cams in the cam cover, and, others say mount them in the head. I understand that it is easy to break the cam cover when pressing it down on the head. I will be using the rear cam locks and the draw down tool to do this operation. I just need to know which method is the correct one. Thanks in advance for your feedback.

James